dual space

10 LETTERS · STARTS WITH D

dual space is a valid 10-letter word worth 14 points in Scrabble and 18 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2U1A1L1S1P3A1C3E1

2 + 1 + 1 + 1 + 0 + 1 + 3 + 1 + 3 + 1 =14 PTS

DOUBLE WORD → 28TRIPLE WORD → 42

MEANING

What does dual space mean?